IV09080: PLUGIN CRASH DUE TO NO HEARTBEAT REPLY.

APAR status

• Closed as program error.

Error description

• Error Message: User use to observe the crash (crash during
  applet load).
  .
  Stack Trace: IExplorerPlugin entering
  waitForSignalWithModalBlocking for <OSB>AppletID 1<CSB>
  IExplorerPlugin exiting waitForSignalWithModalBlocking for
  <OSB>AppletID 1<CSB>
  IExplorerPlugin entering waitForSignalWithModalBlocking for
  <OSB>AppletID 1<CSB>
  IExplorerPlugin exiting waitForSignalWithModalBlocking for
  <OSB>AppletID 1<CSB>
  JVMInstance for 1.6.0.25.rev killing sub-process because of no
  heartbeat reply
  Terminating Java Plug-In Pipe Worker Thread (Server-Side) due to
  exception:java.
  lang.InterruptedException
  JVM instance for 1.6.0.25.rev exited
  JVMInstance.unregisterApplet for applet ID 1
    LiveConnectSupport.shutdown(1)
          at java.lang.Object.wait(Native Method)
          at sun.plugin2.message.Queue.waitForMessage(Unknown
  Source)
          at sun.plugin2.message.Pipe.receive(Unknown Source)
          at
  sun.plugin2.main.server.JVMInstance$WorkerThread.run(Unknown
  Source)
  java.io.IOException: Error 0 reading from named pipe, numRead 0,
  ReadFile ts: 28266033596, now ts: 28266294845, dT 261249
          at sun.plugin2.ipc.windows.WindowsNamedPipe.read(Unknown
  Source)
          at
  sun.plugin2.message.transport.NamedPipeTransport$SerializerImpl.
  read(Unknown Source)
          at
  sun.plugin2.message.transport.NamedPipeTransport$SerializerImpl.
  readByte(Unknown Source)
          at
  sun.plugin2.message.AbstractSerializer.readInt(Unknown Source)
          at
  sun.plugin2.message.transport.SerializingTransport.read(Unknown
  Source)
          at sun.plugin2.message.Pipe$WorkerThread.run(Unknown
  Source)
  AbstractPlugin.getScriptingObjectForApplet ending wait for
  result ID 1
  .
  

Local fix

• Set the following enviornment variable :-
  JPI_PLUGIN2_NO_HEARTBEAT=1
  

Problem summary

• The reason of the crash is due to the fact that within hearbeat
  timeout value (which is hardcoded as 10 secs) we are not getting
  a hearbeat reply. Due to the above reason its killing the sub
  process and resulting into a crash.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR10
  6.0.1 SR1
  .
  JVM has been modified so that heartbeat suspend is applied for
  the JVMInstance heartbeat thread similar to the PluginMain's
  one.
  .
  To obtain the fix:
  Install build 20111022 or later
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R600 PSY

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